This fixes valueflow to have a value for `||` operator here:
```cpp
bool f()
{
bool a = (4 == 3); // <-- 0
bool b = (3 == 3); // <-- 1
return a || b; // <-- 1
}
```
* Add CFGDIR as CMake variable
Adds CFGDIR as a CMake variable.
Previously CFGDIR was hardcoded.
* Add CFGDIR as CMake variable
Adds CFGDIR as a CMake variable.
Previously CFGDIR was hardcoded.
When comparing if the shift is large enough to make the result zero, use
an unsigned long long to make sure the result fits. Also, a check that
avoids setting the value if the shift is equal to or larger than the
number of bits in the operand (this is undefined behaviour). Finally,
add a check to make sure the calculated value is not too large to store.
Add test cases to cover this.
This was detected by an MSVC warning.
valueflow.cpp(1350): warning C4334: '<<' : result of 32-bit shift implicitly
converted to 64 bits (was 64-bit shift intended?)
* use already cached name token rather than recalculating it
multiple times
* cache end of template parameters token and use it rather than
recalculating it multiple times
* remove unnecessary end of template token and name token checks
* remove function parameter that is already contained in another
parameter
* valueflow: remove unused variable known
since e4677ae640 will trigger :
lib/valueflow.cpp:506:20: warning: unused variable 'known' [-Wunused-variable]
const bool known = (parent->astOperand1()->hasKnownValue() ||
* templatesimplifier: cleanup
since 48c960f56c showing:
lib/templatesimplifier.h:279:16: warning: private field 'mTokenizer' is not used
[-Wunused-private-field]
Tokenizer *mTokenizer;
* split CheckNullPointer::arithmeticError() into
* CheckNullPointer::pointerArithmeticError() and
* CheckNullPointer::redundantConditionWarning()
* Additional errorlist entry:
```XML
<error id="nullPointerArithmeticRedundantCheck"
severity="warning"
msg="Either the condition is redundant or there is pointer arithmetic with NULL pointer."
verbose="Either the condition is redundant or there is pointer arithmetic with NULL pointer." cwe="682"/>
```
This fixes issue in:
```cpp
void f()
{
char stack[512];
RGNDATA *data;
if (data_size > sizeof (stack))
data = malloc (data_size);
else
data = (RGNDATA *)stack;
if ((char *)data != stack)
free (data); // <- data is not stack
}
```
It seems the `ProgramMemory` can't handle two known values(such as int and tok) together. So instead `ValueFlowAfterAssign` runs `ValueFlowForward` with tok values and then runs it with the other values.
Paul Fultz II
Daniel Marjamäki
amai2012
orbitcowboy
IOBYTE
nafsub
amai2012
rikardfalkeborn
Carlo Marcelo Arenas Belón
ivangalkin